68704061 has 2 divisors, whose sum is σ = 68704062. Its totient is φ = 68704060.

The previous prime is 68704003. The next prime is 68704063. The reversal of 68704061 is 16040786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40081561 + 28622500 = 6331^2 + 5350^2 .

It is a cyclic number.

It is not a de Polignac number, because 68704061 - 2²⁶ = 1595197 is a prime.

Together with 68704063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68704063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34352030 + 34352031.

It is an arithmetic number, because the mean of its divisors is an integer number (34352031).

Almost surely, 2^68704061 is an apocalyptic number.

It is an amenable number.

68704061 is a deficient number, since it is larger than the sum of its proper divisors (1).

68704061 is an equidigital number, since it uses as much as digits as its factorization.

68704061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 68704061 is about 8288.7912870334. The cubic root of 68704061 is about 409.5693693938.

The spelling of 68704061 in words is "sixty-eight million, seven hundred four thousand, sixty-one".